Chair with ornamental back



FIG. 1 is a front elevation view of the chair with ornamental back;

FIG. 2 is a rear elevation view;

FIG. 3 is a top plan view;

FIG. 4 is an under plan view; and,

FIG. 5 is a side elevation view, the view from each side being identical mirror images of the other. 

The ornamental design for a chair with ornamental back, as shown and described. 